YandexPackLoader[.]exe

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General

Target

YandexPackLoader.exe
Size

354KB
MD5

97eaf183c5dc80a30bd35a84652fad01
SHA1

ff027e4a8a911b84423c710c778c047c2334bb0e
SHA256

c3b2439d2c9835914f683cd26aa03a8ace1c95c3c92fd097e3f8256df735ff87
SHA512

b6f67033f0a92af702219029c5b590c767cde4ba2767d1d4e0d4aa866f016804da867a61966033a4ac3d34ccbb29021e9121d5ad4ff6fd396df3f233cc431436
SSDEEP

6144:0fp18znPaTavhPvnenut3drPAFl3oAOYk22zVstTtsOkz:0fp18wihPvncK3iYmkXqhsO

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
YandexPackLoader.exe

Files

YandexPackLoader.exe
.exe windows:5 windows x86 arch:x86

8671a3d963861aab61fe1391c7d8536a

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

C:\BuildAgent\work\4a73c29f3c4e6ac\downloader\Release\downloader.pdb

Imports

wtsapi32

WTSFreeMemory
WTSQuerySessionInformationW

secur32

LsaFreeReturnBuffer
LsaEnumerateLogonSessions
LsaGetLogonSessionData

wininet

InternetSetOptionA
InternetCloseHandle
InternetSetStatusCallbackA
InternetOpenA
InternetOpenUrlA

kernel32

ReadConsoleW
WriteConsoleW
SetStdHandle
SetHandleInformation
GetCommandLineW
GetCurrentProcess
InterlockedDecrement
GetModuleFileNameW
GetTempPathW
WaitForSingleObject
GetVersionExW
Sleep
GetLastError
GetVersionExA
CloseHandle
GetCurrentProcessId
CreateProcessW
GetExitCodeProcess
HeapSize
UnmapViewOfFile
CreateFileMappingW
MapViewOfFile
VirtualQuery
HeapFree
FindClose
DuplicateHandle
MultiByteToWideChar
OutputDebugStringW
HeapAlloc
GetProcessHeap
WideCharToMultiByte
ReadFile
EnumSystemLocalesW
GetUserDefaultLCID
SetEndOfFile
GetModuleHandleExW
SetFilePointerEx
GetStdHandle
CreateFileW
FindFirstFileExW
IsValidLocale
GetConsoleMode
GetConsoleCP
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
ExitProcess
HeapReAlloc
LoadLibraryExW
FreeLibrary
RaiseException
RtlUnwind
GetOEMCP
IsValidCodePage
FindNextFileW
FlushFileBuffers
GetFileType
GetACP
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
EncodePointer
DecodePointer
GetCPInfo
CompareStringW
LCMapStringW
GetLocaleInfoW
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
GetProcAddress
GetStringTypeW
LocalFree
SetEvent
ResetEvent
WaitForSingleObjectEx
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentThreadId
InitializeSListHead
WriteFile

user32

wsprintfW
CharLowerW

advapi32

CopySid
ConvertSidToStringSidW
GetLengthSid
LsaNtStatusToWinError
OpenProcessToken
GetTokenInformation

shell32

SHCreateDirectoryExW
ShellExecuteExW

ole32

CoUninitialize
CoCreateInstance
OleRun
CoCreateGuid
StringFromGUID2
CoInitialize

oleaut32

VariantInit
SysFreeString
SysAllocString
VariantClear
GetErrorInfo

urlmon

URLOpenBlockingStreamW

wintrust

WinVerifyTrust

version

VerQueryValueW
GetFileVersionInfoSizeW
GetFileVersionInfoW

Sections

.text
Size: 218KB - Virtual size: 218KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 77KB - Virtual size: 77KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 1024B - Virtual size: 652B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 26KB - Virtual size: 25KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

8671a3d963861aab61fe1391c7d8536a

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

wtsapi32

secur32

wininet

kernel32

user32

advapi32

shell32

ole32

oleaut32

urlmon

wintrust

version

Sections

.text Size: 218KB - Virtual size: 218KB

.rdata Size: 77KB - Virtual size: 77KB

.data Size: 5KB - Virtual size: 11KB

.gfids Size: 1024B - Virtual size: 652B

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 26KB - Virtual size: 25KB

.reloc Size: 12KB - Virtual size: 12KB

.text
Size: 218KB - Virtual size: 218KB

.rdata
Size: 77KB - Virtual size: 77KB

.data
Size: 5KB - Virtual size: 11KB

.gfids
Size: 1024B - Virtual size: 652B

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 26KB - Virtual size: 25KB

.reloc
Size: 12KB - Virtual size: 12KB